1 Department of Dermatology and Venereology, Poznan University of Medical Science, Poznan, Poland. Head of the Department: Prof. Zygmunt Adamski MD, PhD; Prevention of Skin Diseases, Department of Biology and the Department of Environmental Protection, Poznan University of Medical Science, Poznan, Poland. Head of the Department: Prof. Mariola Pawlaczyk MD, PhD.
2 Chair and Clinic of Dermatology, Poznan University of Medical Science, Poznan, Poland. Head of the Department: Prof. Zygmunt Adamski MD, PhD.
3 Greater Allergy and Dermatology Center "Art Clinic", Poznan, Poland. Head of the Department: Paweł Silny MD, PhD.
4 Department of Dermatology and Venereology, Poznan University of Medical Science, Poznan, Poland. Head of the Department: Prof. Zygmunt Adamski MD, PhD; Chair and Clinic of Dermatology, Poznan University of Medical Science, Poznan, Poland. Head of the Department: Prof. Zygmunt Adamski MD, PhD.
5 Prevention of Skin Diseases, Department of Biology and the Department of Environmental Protection, Poznan University of Medical Science, Poznan, Poland. Head of the Department: Prof. Mariola Pawlaczyk MD, PhD.